Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c56a36848efa58f…

MALICIOUS

PDF

34.7 KB Authoring application: GIMP
MD5: fdf8a810224e768187429b6b031c8b8c SHA-1: b188c1cabe577f0789dde7f4da843b2eca0f5a5c SHA-256: 1c56a36848efa58fd640f78d6815342d47091a5eb656af654bad91e52b4b33d1
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or phishing lure. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the primary attack vector appears to be user interaction with the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://timurmustafin.com/uploads/1/3/0/3/130379561/f8242c8.pdf
    • http://night-at-the-museum-rotary.org/uploads/1/3/0/2/130287934/palujugopu-gogajijanumo-bupizor-rapowazabivu.pdf
    • http://lanelab.ca/uploads/1/3/0/2/130289773/6813995.pdf
    • http://www.roadbook-idtolight.com/uploads/1/3/0/2/130288316/9099685.pdf
    • http://elloello.com/uploads/1/3/0/4/130477064/vafajuziz-ronilim-lidozubi.pdf
    • http://dongwern.com/uploads/1/3/0/7/130739916/4729818.pdf
    • http://northstarholistic.com/uploads/1/3/0/5/130545493/3752309.pdf
    • http://wnmconstruction.net/uploads/1/3/0/5/130551126/jimorujodu-lutopa-simedug.pdf
    • http://burchettequine.com/uploads/1/3/0/2/130289019/nikapodatitor.pdf
    • http://mta-sts.mx.actscommunitychurches.com/uploads/1/3/0/6/130620585/9293959.pdf
    • http://seed2bowlfarm.com/uploads/1/3/0/3/130313015/71033.pdf
    • http://nataliefarrow.com/uploads/1/3/0/2/130289774/gevuroxowofasideriw.pdf
    • http://reteish.com/uploads/1/3/0/7/130775119/larigix_bomujazodirebuk_sawip_paxunula.pdf
    • http://tarotofthehumanexperience.com/uploads/1/3/0/4/130436152/jajuwubowuvap-garoxuxemol-nikubo.pdf
    • http://howtoadwords.net/uploads/1/3/0/6/130604859/4010198.pdf
    • http://diplomaframesusa.com/uploads/1/3/0/5/130539241/9381073.pdf
    • http://forestgraphic.com/uploads/1/3/0/7/130739928/1072164.pdf
    • http://cairnsclassictours.com/uploads/1/3/0/4/130483045/577279.pdf
    • http://desatascossabadell.com/uploads/1/3/0/2/130291785/76bceccfd8.pdf
    • http://rolowear.com/uploads/1/3/0/6/130605389/faneturenu.pdf
    • http://www.sonnabendcollection.org/uploads/1/3/0/7/130740251/dakalalivekif.pdf
    • http://qualloworldonelovetravel.voyagerwebsites.com/uploads/1/3/0/4/130489363/130489363.html#hands+only+cpr+steps+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002752.bin
7c336f6f049c4ee6ea8c2ad3f2f95edf60a7982ca288369aac9b3afec0dc6dce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2752 7760 bytes

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